I would only support incest in Japanese forums, to encourage hentai producers to create interesting stuff
Jokes aside, I shouldn't even be in this thread because I **** on right and wrong every chance I get, as I consider them flawed and too absolute, and I also **** on fixed morals, but that's an entirely another matter. Reading through most of these posts makes me wanna puke, by the way.
Anyway, on to the actual "point" of this thread.
I will not comment on the genetic defects of incest, because, while true and reasonable, incest does not necessarily involve giving birth, as some people already said.
However, being superficial and speaking purely theoretically sucks hard, and some of you do just that. So, I will try to approach the matter in a more realistic way to get my point through.
Have you ever considered the consequences of incest? Let's think of a scenario, in which you are dating your sibling. Have you considered what the rest of your family might think of it? Do you not care if they do not approve of it? No matter what their reasoning might be. Your parents, yes these people who raised you and cared for you, do not want you to bang your sister. Do you not appreciate what they did for you or take their opinion into consideration? There are so many people out there you can date. Why do you wanna **** up your family? The only reason I can think of is you being unable to find a partner because you, simply and kindly put, suck and chose the "easy" way out.
Let's say your relationship with the family member you've been dating takes an undesirable way and you break up. Not only have you destroyed your family relationship with that family member, but you are now also forcing the rest of your family to choose between you and your "ex".
Family is the only thing you can rely on, yet you're willing to throw that privilege away, just to make your dick happy. And at the same time you are rude enough to call rejecting incest as something " morally wrong" or manipulation, merely because you're on the opposing end of it.